// 
// ConversationExtensionNode.cs
//  
// Author:
//       Tomáš Vondráček <tomas.vondracek@gmail.com>
// 
// Copyright (c) 2010 Tomas Vondracek
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using Mono.Addins;
using IM.Interfaces.GUI;
using IM.Interfaces;
using Common.Interfaces;

namespace IM.GUI.Widgets.ExtensionNodes
{
	internal class ConversationExtensionNode : ExtensionNode
	{
		[Mono.Addins.NodeAttribute("capabilityType", true)]
		string capabilityType;
		
		[Mono.Addins.NodeAttribute("controlFactoryType", true)]
		string controlFactoryType;
		
		[Mono.Addins.NodeAttribute("name", true)]
		string name;
		
		public string Name
		{
			get {
				return this.name;
			}
		}

		internal IConversationCapability GetCapability()
		{
			IConversationCapability capability = null;
			
			if (!string.IsNullOrEmpty(this.capabilityType))
			{
				try
				{
					capability = Addin.CreateInstance(this.capabilityType, true) as IConversationCapability;
					
					if (capability == null)
						throw new NullReferenceException("given capability is in wrong type and IConversationCapability is null");
				}
				catch (Exception ex)
				{
					Logging.Logger.AddException(ex);
				}
			}
			else
				Logging.Logger.AddWarning("ConversationExtensionNode: The capability type is not defined in " + Addin.Id);
			
			return capability;
		}
		
		internal IControlFactory GetConversationFactory()
		{
			IControlFactory browserFactory = null;
			
			if (!string.IsNullOrEmpty(this.controlFactoryType))
			{
				try
				{
					browserFactory = Addin.CreateInstance(this.controlFactoryType, true) as IControlFactory;
					
					if (browserFactory == null)
						throw new NullReferenceException("given control is in wrong type and ConversationBrowser is null");
				}
				catch (Exception ex)
				{
					Logging.Logger.AddException(ex);
				}
			}
			else
				Logging.Logger.AddWarning("ConversationExtensionNode: The conversation browser type is not defined!");
			
			return browserFactory;
		}
	}
}

